Ambidextrous thumb safety



FIG. 1 is rear perspective view of an ambidextrous thumb safety, showingmy new design;

FIG. 2 is a rear elevational view of FIG. 1;

FIG. 3 is a front elevational view of FIG. 1;

FIG. 4 is a top plan view of FIG. 1;

FIG. 5 is a bottom plan view of FIG. 1;

FIG. 6 is a right side elevational view of FIG. 1; and,

FIG. 7 is a left side elevational view of FIG. 1.

The broken lines shown in FIGS. 1-7 form no part of the claimed design.

The ornamental design for an ambidextrous thumb safety, as shown anddescribed.